Roller-bearing



No. 620,180. Patented Feb. 28, I899.

F. H. RICHARDS. ROLLER BEA RING.

- (Application filgd Apr. 9, 1898.) I (No Model.

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THE NORRJS PETERS (20.. PNoYouTHa. Msnmcrom n. c.

,. I I ITED STATES PATENT I Q FRANCIS H. RICHARDS, OF HARTFORD,CONNECTICUT.

ROLLER-BEAR|NG..

SPECIFICATION forming part of Letters Patent No. 620,180, dated February28, 1899.

Application filed April 9, 1898- 7 Serial No. 677,043. (No model.)

T0 on whom it may concern:

Be it known that I, FRANCIS H. RICHARDS, a citizen of the United States,residing at Hartford, in the countyof Hartford and State of Connecticut,have invented certain new and useful Improvements in Roller-Bearings, ofwhich the following is a specification.

This invention relates to roller-bearin gs; and the object of theinvention is to provide a simple device of this character in which thefriction between the journal, the rollers, and the casing is evenlydistributed and one in which the tendency of the rollers to assume anangle to their carrier or to wabble is removed, whereby the peripheriesof the rollers travel squarely against their runway and the journal,respectively, thereby causing the parts to operate with precision andwear with uniformity.

The improved roller-bearing includes in the present instance a carrierand a casing or boxtherefor, said carrier having a substantially centralopening through which the journal is inserted and also having a seriesof rigid studs which may be driven in place or otherwise fixed theretoand about which the rollers rotate. Said studs extend entirely throughand beyond, so that when the latter and their carriers as a whole aresubjected to side thrusts the studs will strike the sides of the casingor box, thereby protecting the rapidly revolvingand rotating rollers.The carrier for said rollers consists, preferably, of a ring having onits opposite sides a plurality of alternating studs, and the diametersof the rollers are such that when assembled upon the studs those uponone side of the carrier overlap those on the opposite side of saidcarrier.

In the drawings accompanyin g and forming part of this specification,Figure l is a front elevation illustrating two of my improvedroller-bearings sustaining a shaft. Fig. 2 is a cross-sectional viewtaken in the line 00 m,

Fig. 1, looking toward the left, part of the cap of the roller-casin gbeing removed. Fig. 3 is a transverse central section of the bearing, apart of the journal being shown in full lines. Fig. 4 is a face view ofthe device with the cap removed. Fig. '5 is a face view of the said armscarrying screws, as 4 and 5, fitting in sockets, as 6, in the'oppositesides of the bearing-boxes, and the two bearings'sustaining the journalportions 7 and 8 of the shaft 9, which carries at its middle the pulley10, although it is obvious that said bearing may be used in any othermanner. The bearings A and A each include a box, as 12, involvingremovable covers 13, which may be held in place by screws, as 14.

In Figs. 2 to 7, inclusive, I have illustrated in detail the bearing A.

The rollers, consisting, preferably, of disks, are disposed inalternation, respectively,upon opposite sides of acarrier, by reason ofwhich rollers of relatively large diameter may be employed, and thecarrier, consists in the present case of a ring 15, having asubstantially central opening through which the journal portion 7 of theshaft passes, the rollers being adapted to bear against said journalportion and against the inside face 17 of the box or casing 12, whichserves as a raceway. The carrier or ring 15 has upon each side theoppositely-disposed rigid studs 17, the inner ends of which are reduced,as at 18, and such reduced ends are tightly fitted or driven into thecircular series of openings 19 in the ring 15. Those rollers upon oneside of the ring 15 are designated by 20, while the remaining rollers,which overlap, respectively, their companions, are designated by 21, andthe two series are rotatably mounted upon the rigid studs 17.

By rigidly mounting the studs upon the carrier or ring 15 the rollers asthey revolve about the journal portion 7 of the shaft 9 and in contacttherewith and with the raceway 17 cannot wabble or assume an angle tothe carrier. by virtue of which the peripheries of the several rollersare maintained in true contact with the two bearing-surfaces justalluded to, and the lives of the rollers and of the journal and thebearing-box 12 are thereby materially prolonged.

The rollers and their carrier as a .Whole occasionally are subjected tolateral thrusts, and for the purpose of protecting the outer faces ofsaid rollers the studs supporting the same extend entirely through andbeyond the rollers, as represented in Figs. 3 and 7, by reason of whichwhen the bearing is thrust in either direction the studs and not therapidly rotating and revolving rollers come in contact with the insideof the box 12 or its cover.

The carrier, which consists of the ring 15 and a series of fixed studs17, disposed in alternation upon opposite sides of said ring, is fittedclosely but freely in the casing, by reason of which the rollers arenormally maintained free-from pressure against the sides of the casing.In practice the carrier is almost constantly subjected to side thrusts,and when such action takes place in either direction it will be obviousthat the studs by projecting beyond the rollers will bear against orstrike the opposite sides of the casing, thereby positivel y preventingthe rollers from being forced into contact with the casin g, andconsequently insuring the free rotation of all of said rollers and theireven wear. It will of course be understood that it the rollersthemselves are subjected to pressure against the casing their properrotation is retarded or arrested so long, as the contact and pressurecontinue, and

of course uneven wear of the peripheries is caused, as well asunnecessary wear upon the outside faces of the rollers.

By looking the two series of rollers, one set on either side of the sameannular carrier, with the rollers of one set located circumferentiallyof the carrier at points intermediate of the rolls of the other set, theangular distance circumferentially of the journal between the successivebearing-points of the entire series of rollers upon the journal isreduced to a minimum, thereby securing a high degree of smoothness ofoperation not otherwise readily obtainable.

Having described my invention, I claim- The combination, with a casing,of a series of rollers; a carrier for the rollers, consisting of a ringhaving a series of fixed studs disposed in alternation upon oppositesides thereof upon which the rollers are rotatively mounted, said studsextending entirely through and beyond the rollers, whereby, when thecarrier is subjected to side thrusts, the ends of the studs will bearagainst the casing, thereby preventing the rollers from subjection topressure against the casing and insuring the free rotation of saidrollers, and the carrier being supported with a close but free fit inthe casing, whereby said rollers will be normally maintained out of endcontact with the casing.

FRANCIS H. RICHARDS.

Witnesses:

F. N. CHASE, JOHN O. SEIFERT.

